Steps of manual screen printing plate making

The steps of manual screen printing plate making are as follows:

1. Material selection: screen-printed screen yarn and screen frame are selected, and screen and screen frame sizes with different mesh numbers are selected according to different base materials and precision requirements. (The comb of ordinary screen printing is 300 mesh).

2. Screen frame polishing: screen frame polishing (the purpose of screen frame polishing is to make the screen and screen frame closely combined).

3. Stretching the mesh frame: evenly coat adhesive on the polished mesh frame. When the glue is semi-dry, put the screen frame on the screen puller and stretch the screen according to the strength required by the screen frame. After reaching the strength, stick the screen mesh on the screen frame coated with adhesive, and scrape off the bonding part between the screen mesh and the screen frame with a scraper.

4. Screen degreasing: Apply degreasing agent to the stretched screen frame, and rub the front and back sides of the screen printing screen with a brush (there is a layer of grease on the surface of the screen printing screen, and the oil filtering effect of the screen printing screen after degreasing is better, and the photosensitive adhesive is more tightly bonded).

5. Screen sizing: use a sizing machine to evenly coat the photosensitive adhesive on the screen frame after degreasing and drying, and dry it (the whole sizing process must be carried out in a dark room, and the photosensitive adhesive shall not be exposed to strong light).

6. First exposure: Select the film pattern to be plate-made, stick the screen on the glossy surface of the screen frame and make it close to the glossy surface, and put the screen frame with the film on the printer for exposure (the exposure time is adjusted according to the light intensity of the exposure machine).

7. Screen washing: soak the exposed screen frame in water for 65,438+0 minutes, and wash the screen frame with a water gun to fully wash the photosensitive paste on the pattern part.

8. Modification: The damaged part of the screen frame after washing is repaired with photosensitive paste and dried.

9. Secondary exposure: The revised screen needs to be put back on the printer for secondary exposure and setting.

Data expansion:

Screen printing plate is a kind of printing plate material, and the printing layout is mesh, which is a perforated printing plate composed of screen template, screen and screen frame. Templates used for screen printing are also called "screen", "screen" and "screen". Optical tools for photographic plate making.